Home / 692,878.18-1,039,404.76-219,394.30

Finding the Fourth Proportional to 692,878.18, 1,039,404.76 and 219,394.30

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Solution

The fourth proportional to 692,878.18, 1,039,404.76 and 219,394.30 is: 329,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,878.18 : 1,039,404.76 = 219,394.30 : x
  2. Step 2: Convert to fraction form
    692,878.18/1,039,404.76 = 219,394.30/x
  3. Step 3: Cross multiply
    692,878.18x = 1,039,404.76 × 219,394.30
  4. Step 4: Simplify right side
    692,878.18x = 228,039,479,736.87
  5. Step 5: Solve for x
    x = 228,039,479,736.87/692,878.18
  6. Step 6: Final answer
    x = 329,119.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.